update polymer, nodebind, and templatebinding

pkg/polymer/lib/src/js/polymer/polymer-body.html

-<polymer-element name="polymer-body" extends="body">
-
-  <script>
-
-  // upgrade polymer-body last so that it can contain other imported elements
-  document.addEventListener('polymer-ready', function() {
-    
-    Polymer('polymer-body', Platform.mixin({
-
-      created: function() {
-        this.template = document.createElement('template');
-        var body = wrap(document).body;
-        var c$ = body.childNodes.array();
-        for (var i=0, c; (c=c$[i]); i++) {
-          if (c.localName !== 'script') {
-            this.template.content.appendChild(c);
-          }
-        }
-        // snarf up user defined model
-        window.model = this;
-      },
-
-      parseDeclaration: function(elementElement) {
-        this.lightFromTemplate(this.template);
-      }
-
-    }, window.model));
-
-  });
-
-  </script>
-
-</polymer-element>